VETERINARY MEDICINE. 85 



excellent condition, the fact that they were suffering; from the disease being 

 indicated only by the tuberculin test. 



In 22 of these cases, acid-fast bacilli morphologically similar to the tubercle 

 bacillus were demonstrated by the microscope as present in the manure. Sub- 

 sequent inoculation tests, however, showed that in but 3 of these cases were 

 the cows passing virulent tubercle bacilli, which result indicates that a micro- 

 scopic examination alone is untrustworthy in the determination of the pres- 

 ence of tubercle bacilli in cow manure. 



Of the 3 animals which wore i)assing virulent tubercle bacilli in their feces, 

 2 were in good physical condition. In one of these the disease would not 

 have been suspected from her appearance, yet the feces contained large numbers 

 of acid-fiLst rods, some of them virulent tubercle bacilli. The second, a male 

 of exceptionally fine appearance, siiffei*ed from a persistent but moderate cough. 

 The third, a cow, was thin but the symptoms of the disease were not marked. 

 In this case the number of acid-fast bacilli in the feces as revealed by the 

 microscojie was exceedingly large. 



The authors conclude that " hogs should not be permitted to run in the same 

 pen with cattle, especially if the latter are known to be tuberculous. Dairy 

 products from tuberculous cows, even though there is no infection of the 

 udder, are a source of danger to man. The number of tuberculous cows which 

 show no symptoms of disease but which excrete virulent tubercle bacilli in 

 their manure is sufficiently large to make this an important factor in the con- 

 trol of tuberculosis." 



The frequence and detection of tuberculosis of the bones in slaughtered 

 animals, (J. Stroii (Ztschr. Fleisch u. MilchJiijff., IH (IDO!)), No. H, pp. 265- 

 271). — The author here reports studies conducted from 1902 to 1908 at the 

 Augsburg abattoir. 



The ophthalmo, cuti, and vaginal reaction in tuberculosis, J. Richteb 

 (Ztschr. Infcktionskrank. u. Hyg. Ilaustiere, 5 (1909), No. S-'i, pp. 2.'f3-28S; 

 abs. in Bui. I)is-t. Pnsfrur, 7 (1909), No. 9, p. //OO).— The author thinks that the 

 use of concentrated preparations is necessary, as he finds the undiluted tuber- 

 culin suitable for the ophthalmo, cuti, and vaginal reactions. For the ocular 

 and vaginal tests the best results were obtained from the tuberculol D and 

 tuberculin Dohna ; for the cuti reaction the tuberculin of Iloechst and tuberculin 

 Dohna. He does not think that the local tests should be substituted for the 

 subcutaneous. 



Application of the precipitin reaction of Bonome to the diagnosis of tuber- 

 culosis and to the differentiation of the human and bovine types of the 

 tubercle bacillus, Dammann and Stkdefeder {Dent. Tlcrdrztl. Wchnschr., 17 

 ( 1909), No. 2, pp. 17-19; abs. in Bui. Inst. Pasteur, 7 (1909), No. 9, p. 399).— 

 After repeating the exi)eriments of Ronome (E. S. R., IS, p. 1163), the authors 

 find that they can not recommend the use of his precipitin reaction as a means 

 for diagnosing tuberculosis and much less as a means for distinguishing be- 

 tween human and bovine types of the bacillus. 



The intradermal reaction to tuberculin, Vallee, Declaire, and Herbet 

 (Bui. t<or. Cent. Mdfl. Vet., 86 (1909), No. 6, pp. 107-115).— The authors find 

 this to be a ^ery exact method of obtaining Pirquet's cutaneous reaction and 

 think that it should be used in jiractice in preference to all others. 



Potassium iodid and tuberculin, F. Sobel (Ann. Inst. Pasteur, 23 (1909), 

 No. 7, pp. 533-546, chart 1). — The author finds that the reaction of tuberculous 

 guinea pigs to iodid of potassium is apparently caused by a specific product. 

 This product is not tuberculin. 



A new contribution to the study of the defects of tuberculin, J. Lignieres 

 (Bui. Soc. Cent. Med. V6t., S6 (1909), No. 6, pp. 91-103).— The author considers 



